I've carried an LCR for a couple of years. Fantastic little gun. Lightweight, small, comfortable carry means it's an "always" gun. Very accurate too if you do your part. Reliablity is 100% with mine and I rarely hear of any problems with them. Great investment.
I've tried small autos and they're not really my thing. If I want small I'll take a snubbie as I can get a better grip on a small revolver and shoot them better than micro-automatics.
I wouldn't let "adding a new caliber" put me off of buying an accurate, reliable, proven firearm that you'll be glad to carry every day.